What is the kinetic energy (in J) of the block when it is moving at 4.00 m/s?  ______J   Next, let's calculate the work (in J) done on the block by the rope.  ______J   Let's continue analyzing the example from the previous step. Using the initial kinetic energy and work found in the previous step, what is the final kinetic energy (in J) of the block, after it has moved the 3.00 m distance?  _____J   Now that we have the final kinetic energy, use it and the mass of the block to solve for the final speed (in m/s). ______ m/s

Q: A person is pushing a box of mass 5 kg horizontally across a floor using a constant force of 13 N.…

A: F-Ffriction=maa=F-Ffrictionm=13 N-3 N5 kg=2 m/s2

Q: A boat has a mass of 6.43 x 10³ kg. Its engines generate a drive force of 4.5 x 103 N due west,…

A:

Q: A toad with mass of 280 g leaps into the air to catch a fly. If the toad's jump was at an angle of…

A: When the toad with a mass of 280 g leaps into the air to catch a fly and the toad's jump was at an…

Q: Cynthia pulls horizontally on an old chest of drawers (m = 75.0 kg), sliding it across the floor.…

A: Given data: The mass of the chest of drawers is m=75.0 kg. The force of pull applied by Cynthia is…

Q: You managed to pull a heavy crate up a ramp on a truck. The crate has mass 50 kg. You were pulling…

A:

Q: Figure shows a block of mass m resting on a 20° slope. The block has coefficients of friction μ =…

A: Given Data: Angle of ramp θ=20° Coefficient of static friction μs=0.81 Coefficient of kinematic…

Q: You managed to pull a heavy crate up a ramp on a truck. The crate has mass 50 kg. You were pulling…

A: Force applied (F)= 480 N Coefficient of kinetic friction (µk)= 0.49 Mass of crate(m)= 50 kg Angle of…

Q: A particle of mass 4.00 kg, moving on a horizontal table top, has an acceleration vector (in m/s2)…

A:

Q: You are pushing a rubber crate against a concrete floor. The two surfaces have a static coefficient…

A: 1) for rubber crate  Limiting friction fL = usmg = 0.66×25×9.81  fL = 161.86 N  Applied force F = 85…

Q: The figure shows an overhead view of a 0.0260 kg lemon half and two of the three horizontal forces…

A: At equilibirium net force is zero  F→net=0 or F1→+F2→+F3→=0 Given F1=6.00 N at θ1=25.0°F2=7.00 N at…

Q: You managed to pull a heavy crate up a ramp on a truck. The crate has mass 47 kg. You were pulling…

A:

Q: a girl is pulling her 6.8kg wagon along a horizontal sidewalk. the force exerted by the girl is 17 N…

A:

Q: A horizontal force of magnitude F = 57.5 N pushes on a block of mass m = 4.7 kg. The block is on a…

A: The given situation can be represented as

Q: Two men decide to use their cars to pull a truck stuck in mud. They attach ropes and one pulls with…

A:

Q: You are pushing a rubber crate against a concrete floor. The two surfaces have a static coefficient…

A: when some force is applied against friction at first it will try to overcome the static friction.…

Q: A horizontal force of magnitude F = 56.2 N pushes on a block of mass m = 5.87 kg. The block is on a…

A: The objective of the question is to find the acceleration of the block on the incline in terms of…

Q: ou are pushing a wooden crate against a rubber floor. The two surfaces have a static coefficient of…

A: Given: The mass of the crate is 25 kg. The coefficient of the static friction is 0.45. The…

Q: Two packages at UPS start sliding down the 20° ramp shown in the figure. Package A has a mass of…

A:

Q: A chair of mass 12.0 kg is sitting on the horizontal floor; the floor is not frictionless. You push…

A: Concept used: Force will be split in two components. Normal reaction acts perpendicular to surface…

Q: You managed to pull a heavy crate up a ramp on a truck. The crate has mass 45 kg. You were pulling…

A:

Q: Three people are pulling on a tree. The first person pulls with 15 N at 65°; the second with 16 N at…

A: The given vector are in polar representation! First we need to convert each and every given force…

Q: A boat has a mass of 6769 kg. Its engines generate a drive force of 4039 N, due west, while the wind…

A:

Q: An object weighing 500kg is to be pulled by a man by exerting a force P. Force P is inclined at an…

A:

Q: a 2 kg golf ball moves along an x axis according to x(t) = 10t^3 - 2.80t^2 + 7.4t +15 , with x in…

A:

Q: A horizontal force of magnitude F = 47.6 N pushes on a block of mass m = 6.08 kg. The block is on a…

A:

Q: A rope is attached to Box A, and it is pulled on a rough surface due east with friction. The mass of…

A:

Q: An SUV drives on a straight-line track. Starting with a speed v0 = 14.4m/s, it comes to rest over a…

A:

Q: Two workers are sliding 390 kg crate across the floor. One worker pushes forward on the crate with a…

A: Given:- Two workers are sliding m= 390 kg crate across the floor. One worker pushes forward on the…

Q: Mary applies a force of 77 N to push a box with an acceleration of 0.55 m/s2. When she increases the…

A:

Q: A toad with mass of 280 g leaps into the air to catch a fly. If the toad's jump was at an angle of…

A: Given that mass of the toad and angle and also given the initial velocity. Then We have to determine…

Q: A tug-of-war match happens between Team Blue and Team Red. Each of Team Blue’s members has an…

A: Given data: Mass of each member's of Blue team, m1=76 kg Average force exert, F1=1225 N Mass of…

Q: A crate is pushed across a horizontal surface by the applied force shown in the figure. The…

A: The magnitude of the force acting on the crate is F = 24.1 N. The angle of the applied force is…

Instantaneous Power

Power is defined in physics as the amount of energy transmitted or transformed per unit time. The watt is the unit of electricity in the International System of Units, equivalent to one joule per second.